EFFECTS OF CHARACTERISTICS OF URBAN BLOCK ON WIND ENVIRONMENT IN THE STREET CANYON:Analysis on the relationship between properties of urban block and wind path in the street canyon for the use of the wind as the climate resources Part 2
EFFECTS OF CHARACTERISTICS OF URBAN BLOCK ON WIND ENVIRONMENT IN THE STREET CANYON:Analysis on the relationship between properties of urban block and wind path in the street canyon for the use of the wind as the climate resources Part 2
复制标题
街道峡谷城市街区特征对风环境的影响——利用风作为气候资源的城市街区属性与街道峡谷风路关系分析（二）
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
M. Moriyama
中科院分区：
文献类型：
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作者：
H. Takebayashi;Toshiaki Yamada;M. Moriyama
促进街道峡谷通风是解决城市热岛效应的有效措施之一。分析城市街区特性与街道峡谷风环境的关系。在这项研究中，街道峡谷的风环境和城市街区的特点，如建筑物的覆盖率，建筑物高度的变化，以及路边的属性，如街道的方向，街道的宽度，建筑物的高度之间的关系进行了研究，在大坂市中心进行的CFD模拟结果。街道峡谷的通风是由建筑高度变化形成的正、负压区促进的。改善街道峡谷内的通风，既要考虑高层建筑引起的“垂直风路”，又要考虑沿着宽阔道路平行于上风方向形成的“水平风路”。还证实了应注意迎风和顺风区域。
To promote ventilation in the street canyon is one of the effective urban heat island measures. The analysis on the relationship between properties of urban block and wind environment in the street canyon is required. In this study, relationship between wind environment in the street canyon and characteristics of urban block e.g. building cover ratio, variation of building heights, as well as roadside properties e.g. direction of street, width of street, height of building, is studied by CFD simulation results carried out in the central Osaka city. Ventilation in the street canyon is promoted by positive and negative pressure areas which are formed by variation of building heights. Both "the vertical wind path" caused by high-rise building and "the horizontal wind path" formed along the wide road parallel to upper wind direction should be considered for the improvement of ventilation in the street canyon. It is also confirmed that the attention to windward and downwind areas should be noted.